Nano Archive

Detailed experimental and theoretical investigation of the electron transport in a dye solar cell by means of a three-electrode configuration

Wuerfel, U. and Peters, M. and Hinscht, A. (2008) Detailed experimental and theoretical investigation of the electron transport in a dye solar cell by means of a three-electrode configuration. JOURNAL OF PHYSICAL CHEMISTRY C, 112 (5). pp. 1711-1720.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp077016x

Abstract

Dye solar cells, have been built in a three-electrode configuration where the nanoporous TiO2 layer has been contacted additionally on the rear side by means of a thin porous layer of metal titanium. With this third electrode, it was proved that under short-circuit conditions and an illumination intensity equivalent to ``1 sun'', the differences of the electrochemical potential of the electrons between the two ends of the TiO2 layer reached values of more than 600 meV. The results confirm our former work carried out using an indirect method. As the third electrode could be used as a current collector as well, deeper insight in the transient behavior was achieved. A model has been developed to describe the transient electron transport through the TiO2 matrix, taking explicitly into account the numerous trap states of nanoporous anatase. The model turned out to be in good agreement with the experimental results.

Item Type:Article
Uncontrolled Keywords:Dye solar cells-nanoporous TiO2 - electron transport - nanoporous anatase
Subjects:Technology > Nanotechnology and energy applications
ID Code:5982
Deposited By:IoN
Deposited On:01 Sep 2009 11:11
Last Modified:01 Sep 2009 11:11

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